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Posted: 6/23/2018 12:52:30 PM EDT
[#1]
Trim all cases the same.
I would just trim them all the same as the shortest one, assuming the shortest one is within SAAMI specifications. |
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Posted: 6/23/2018 10:14:37 PM EDT
[#2]
.30 carbine is a tapered case, so it needs to be lubed and trimmed. I find that typical flat-base .30 carbine bullets are easier to seat with the case mouth slightly flared using a Lee flaring tool - flare is removed with a Lee taper crimp die as the last operation.
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Posted: 6/24/2018 10:55:01 AM EDT
[#3]
Quote HistoryQuoted:
.30 carbine is a tapered case, so it needs to be lubed and trimmed. I find that typical flat-base .30 carbine bullets are easier to seat with the case mouth slightly flared using a Lee flaring tool - flare is removed with a Lee taper crimp die as the last operation. I load 30 Carbine by the thousands and yes, they do need trimming and lubing when resizing even with a Lee carbide die set because the cases are in fact tapered. I've had good luck with Rainier and Berrys plated 110grn 30 Carbine bullets, however, as with all plated bullets you have to be careful not to over crimp. Just return the case mouth to straight and you'll be fine. Over crimping risks cutting the plating. As to accuracy with them, carbines are 'minute of coffee cup' at best and with a full auto, you ain't doing 'precision shooting anyway. That said, while my GI '43 NPM would produce at best, 3" groups with my best Speer JSP handloads, my shooter is an AO commercial one I bought NIB back in 2012 and it's best group is just under 2" at 100yds with them. |
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Posted: 6/25/2018 6:37:38 PM EDT
[#4]
Here is how I load .30 Carbine. I load for a USGI Saginaw carbine and have had 100% success. It works for me.
1. Tumble range pick-up brass (most, but not all, fired by me) 2. Hornady One-Shot, then wait a few minutes as per the instructions 3. Size in Lee carbide die 4. Measure cases and discard those over the max length (don't throw them away, just put them in a zip-loc or something) 5. Prime 6. Charge 7. Seat bullet I load on a Hornady LNL with Lee dies. I use 14.2 grains of W296 with plated bullets. I only occasionally get a case that needs to be trimmed. As such, I just sort them out. I would guess 5-10%. Eventually I might trim them but I have enough brass that for now it isn't worth my time. I actually load .30 Carbine like pistol ammo - fully progressive, just one pass around the press. The only added steps are the case lube (because .30 Carbine is a bit stout to size without lube) and the measuring / discarding step. I load USGI steel cases the same as brass. Don't even separate them. They don't grow and never need to be trimmed. |
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